Use visitDOMWrapper to preserve WebGL JS object wrappers

third_party/WebKit/Source/bindings/modules/v8/custom/V8WebGLRenderingContextCustom.cpp

Index: third_party/WebKit/Source/bindings/modules/v8/custom/V8WebGLRenderingContextCustom.cpp
diff --git a/third_party/WebKit/public/platform/WebEffectiveConnectionType.h b/third_party/WebKit/Source/bindings/modules/v8/custom/V8WebGLRenderingContextCustom.cpp
similarity index 79%
copy from third_party/WebKit/public/platform/WebEffectiveConnectionType.h
copy to third_party/WebKit/Source/bindings/modules/v8/custom/V8WebGLRenderingContextCustom.cpp
index 3a962660065362001ceb20332a6ddb04523be96a..c7accf8b8c25587f0e2d087f134a5c0453e8cfda 100644
--- a/third_party/WebKit/public/platform/WebEffectiveConnectionType.h
+++ b/third_party/WebKit/Source/bindings/modules/v8/custom/V8WebGLRenderingContextCustom.cpp
@@ -28,20 +28,18 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef WebEffectiveConnectionType_h
-#define WebEffectiveConnectionType_h
+#include "bindings/modules/v8/V8WebGLRenderingContext.h"
+
+#include "modules/webgl/WebGLRenderingContextBase.h"
+
+using namespace WTF;
 
 namespace blink {
 
-enum class WebEffectiveConnectionType {
-    TypeUnknown,
-    TypeOffline,
-    TypeSlow2G,
-    Type2G,
-    Type3G,
-    Type4G
-};
+void V8WebGLRenderingContext::visitDOMWrapperExtra(v8::Isolate* isolate, ScriptWrappable* scriptWrappable, const v8::Persistent<v8::Object>& wrapper)
+{
+    WebGLRenderingContext* impl = scriptWrappable->toImpl<WebGLRenderingContext>();
+    impl->visitChildDOMWrappers(isolate, wrapper);
+}
 
 } // namespace blink
-
-#endif // WebEffectiveConnectionType_h